Impact Resistant Material in Setting Tool

ABSTRACT

A setting tool comprising a first and a second cylindrical body with inner bores, a third cylindrical body engaged to the first cylindrical body and having an inner cavity with an axial opening adapted to accept a power charge and a having a distal end with a shoulder engaged with the second cylindrical body, a fourth cylindrical body coupled to the third cylindrical body and having a transverse slot, a fifth cylindrical body fixed to the second cylindrical body and having an inner bore wherein the fourth cylindrical body is engaged therewith and further having a radial face within the second cylindrical body, a disc shaped impact dampening material with a hollow center having the fourth cylindrical body is located there through and coupled to the radial face of the fifth cylindrical body, and a sixth cylindrical body coupled to the fifth cylindrical body and having a transverse slot.

RELATED APPLICATIONS

This application claims priority to U.S. Provisional Application No.62/634,734, filed Feb. 23, 2018.

BACKGROUND OF THE INVENTION

Generally, when completing a subterranean well for the production offluids, minerals, or gases from underground reservoirs, several types oftubulars are placed downhole as part of the drilling, exploration, andcompletions process. These tubulars can include casing, tubing, pipes,liners, and devices conveyed downhole by tubulars of various types. Eachwell is unique, so combinations of different tubulars may be loweredinto a well for a multitude of purposes.

A subsurface or subterranean well transits one or more formations. Theformation is a body of rock or strata that contains one or morecompositions. The formation is treated as a continuous body. Within theformation hydrocarbon deposits may exist. Typically a wellbore will bedrilled from a surface location, placing a hole into a formation ofinterest. Completion equipment will be put into place, including casing,tubing, and other downhole equipment as needed. Perforating the casingand the formation with a perforating gun is a well-known method in theart for accessing hydrocarbon deposits within a formation from awellbore.

Explosively perforating the formation using a shaped charge is a widelyknown method for completing an oil well. A shaped charge is a term ofart for a device that when detonated generates a focused output, highenergy output, and/or high velocity jet. This is achieved in part by thegeometry of the explosive in conjunction with an adjacent liner.Generally, a shaped charge includes a metal case that contains anexplosive material with a concave shape, which has a thin metal liner onthe inner surface. Many materials are used for the liner; some of themore common metals include brass, copper, tungsten, and lead. When theexplosive detonates, the liner metal is compressed into a super-heated,super pressurized jet that can penetrate metal, concrete, and rock.Perforating charges are typically used in groups. These groups ofperforating charges are typically held together in an assembly called aperforating gun. Perforating guns come in many styles, such as stripguns, capsule guns, port plug guns, and expendable hollow carrier guns.

Perforating charges are typically detonated by detonating cord inproximity to a priming hole at the apex of each charge case. Typically,the detonating cord terminates proximate to the ends of the perforatinggun. In this arrangement, an initiator at one end of the perforating guncan detonate all of the perforating charges in the gun and continue aballistic transfer to the opposite end of the gun. In this fashion,numerous perforating guns can be connected end to end with a singleinitiator detonating all of them.

The detonating cord is typically detonated by an initiator triggered bya firing head. The firing head can be actuated in many ways, includingbut not limited to electronically, hydraulically, and mechanically.

Expendable hollow carrier perforating guns are typically manufacturedfrom standard sizes of steel pipe with a box end having internal/femalethreads at each end. Pin ended adapters, or subs, having male/externalthreads are threaded one or both ends of the gun. These subs can connectperforating guns together, connect perforating guns to other tools suchas setting tools and collar locators, and connect firing heads toperforating guns. Subs often house electronic, mechanical, or ballisticcomponents used to activate or otherwise control perforating guns andother components.

Perforating guns typically have a cylindrical gun body and a chargetube, or loading tube that holds the perforating charges. The gun bodytypically is composed of metal and is cylindrical in shape. Charge tubescan be formed as tubes, strips, or chains. The charge tubes will containcutouts called charge holes to house the shaped charges.

It is generally preferable to reduce the total length of any tools to beintroduced into a wellbore. Among other potential benefits, reduced toollength reduces the length of the lubricator necessary to introduce thetools into a wellbore under pressure. Additionally, reduced tool lengthis also desirable to accommodate turns in a highly deviated orhorizontal well. It is also generally preferable to reduce the toolassembly that must be performed at the well site because the well siteis often a harsh environment with numerous distractions and demands onthe workers on site.

Electric initiators are commonly used in the oil and gas industry forinitiating different energetic devices down hole. Most commonly, 50-ohmresistor initiators are used. Other initiators and electronic switchconfigurations, such as the Hunting ControlFire technology andDynaSelect technology, are also common.

In setting tools a metering fluid, typically an oil, is used to dampenany violent shock forces due to the actuation of the setting tool.

Bridge plugs are often introduced or carried into a subterranean oil orgas well on a conduit, such as wire line, electric line, continuouscoiled tubing, threaded work string, or the like, for engagement at apre-selected position within the well along another conduit having aninner smooth inner wall, such as casing. The bridge plug is typicallyexpanded and set into position within the casing. The bridge plugeffectively seals off one section of casing from another. Severaldifferent completions operations may commence after the bridge plug isset, including perforating and fracturing. Sometimes a series of plugsare set in an operation called “plug and perf” where several sections ofcasing are perforated sequentially. When the bridge plug is no longerneeded the bridge plug is reamed, often though drilling, reestablishingfluid communication with the previously sealed off portion of casing.

Setting a bridge plug typically requires setting a “slip” mechanism thatengages and locks the bridge plug with the casing, and energizing thepacking element in the case of a bridge plug. This requires largeforces, often in excess of 20,000 lbs. The activation or manipulation ofsome setting tools involves the activation of an energetic material suchas an explosive pyrotechnic or black powder charge to provide the energyneeded to deform a bridge plug. The energetic material may use arelatively slow burning chemical reaction to generate high pressuregases. One such setting tool is the Model E-4 Wireline Pressure SettingTool of Baker International Corporation, sometimes referred to as theBaker Setting Tool.

After the bridge plug is set, the explosive setting tool remainspressurized and must be raised to the surface and depressurized. Thistypically entails bleeding pressure off the setting tool by piercing arupture disk or releasing a valve.

SUMMARY OF EXAMPLE EMBODIMENTS

An example embodiment may include a setting tool comprising a firstcylindrical body with an inner bore, a second cylindrical body with aninner bore, being coaxial with and coupled to the first cylindricalbody, a third cylindrical body slideably with a first end engaged to theinner bore of the first cylindrical body and having an inner cavity withan axial opening at the first end adapted to accept a power charge and ahaving a distal end with a shoulder slideably engaged with the secondcylindrical body inner bore, a fourth cylindrical body with a first endcoupled to the distal end of the third cylindrical body and having adistal end with a transverse slot, a fifth cylindrical body fixed to thedistal end of the second cylindrical body and having an inner borewherein the fourth cylindrical body is slideably engaged therewith andfurther having a radial face within the second cylindrical body, a discshaped impact dampening material with a hollow center having the fourthcylindrical body is located therethrough and coupled to the radial faceof the fifth cylindrical body, and a sixth cylindrical body coupled tothe fifth cylindrical body and having a transverse slot; wherein theshoulder of the third cylindrical body engages the disc shaped impactdampening material when the third cylindrical body travels apredetermined distance within the second cylindrical body.

A variation of the example embodiment may include the inner cavity ofthe third cylindrical body forming a power charge chamber. The fourthcylindrical body may be a piston. A chamber may be formed by the firstpiston and the cylindrical body.

An example embodiment may include a setting tool apparatus comprising acylindrical body having a center axis, a first end, a second end, aninner surface, and an outer surface, a first piston located within thecylindrical body and axially aligned with the cylindrical body, having afirst end and a second end, the first end coupled to a secondcylindrical body with a raised radial shoulder, a cylindrical mandrelextending from the second end of the first piston and being axiallyaligned with the cylindrical body, a cylinder head coupled to the secondend of the cylindrical body and axially aligned with the cylindricalbody and having an inner radial face with the cylindrical mandrellocated therethrough, an impact dampening material in contact with theinner radial face, wherein the impact dampening material absorbs theenergy of the piston moving downhole within the cylindrical body withouta dampening fluid.

A variation of the example embodiment may include a power charge locatedproximate to the first cylindrical body, wherein gases generated by thepower charge can enter second cylindrical body. It may include a firinghead coupled to the power charge.

An example embodiment may include a method for setting a plug in aborehole comprising activating a firing head, starting a gas pressuregenerating chemical reaction, pressurizing a chamber located with acylinder with the generated gas pressure, moving a piston disposedwithin the cylinder in a downhole axial direction with the generatedgas, setting an expandable packer using the downhole motion of thepiston, and impacting the first piston against an impact dampeningmaterial, wherein the impact stops the movement of the piston withoutthe use of a hydraulic fluid.

A variation of the example embodiment may include placing a setting toolin a borehole at a predetermined location for installing a bridge plug.It may include shearing a shear stud coupled between a setting tool anda setting plug. It may include removing the setting tool from theborehole after setting a bridge plug. The expandable packer may be abridge plug.

BRIEF DESCRIPTION OF THE DRAWINGS

For a thorough understanding of the present invention, reference is madeto the following detailed description of the preferred embodiments,taken in conjunction with the accompanying drawings in which referencenumbers designate like or similar elements throughout the severalfigures of the drawing. Briefly:

FIG. 1 shows an example embodiment of a side view of a setting toolprior to setting an expandable packer.

FIG. 2 shows an example embodiment of a side view of a setting toolprior to setting an expandable packer.

FIG. 3 shows an example embodiment of an exploded view of a settingtool.

FIG. 4 shows an example embodiment of a side view of a setting toolafter setting an expandable packer.

FIG. 5 shows an example embodiment of a side view of a setting toolafter setting an expandable packer.

DETAILED DESCRIPTION OF EXAMPLES OF THE INVENTION

In the following description, certain terms have been used for brevity,clarity, and examples. No unnecessary limitations are to be impliedtherefrom and such terms are used for descriptive purposes only and areintended to be broadly construed. The different apparatus, systems andmethod steps described herein may be used alone or in combination withother apparatus, systems and method steps. It is to be expected thatvarious equivalents, alternatives, and modifications are possible withinthe scope of the appended claims.

An example embodiment may include replacing the oil in a setting toolwith an impact resistant material. This may remove the auxiliary chamberin some setting tools for oil to flow into which may reduce the overalllength of the setting tool. The impact resistant material may provide amore reliable dampening system. The impact resistant material mayimprove the life of setting tools and the entire tools string bydampening shock typically seen from actuation of the setting tool, whichtravels throughout the tool string. Using an impact resistant materialmay provide for easier assembly in the field. The impact resistantmaterial is molded into a preferred geometry that allows the user toinstall the material into a setting tool during assembly. Actuating thesetting tool causes the material to compress at a constant rate to apredetermined volume. Upon reaching this predetermined volume thematerial acts as an impact dampener and absorbs and or dissipates energyseen as the setting tool's actuation exerts shock loading.

An example embodiment is shown in FIG. 1 from a side view cross-sectionof a setting tool prior to setting. A setting tool 10 may include a topcylinder 11 coupled to a lower cylinder 12. An upper cylinder 35 isslideably engaged with the top cylinder 11. The upper cylinder 35includes an inner bore referred to as the power charge chamber 15. Theupper cylinder 35 is coupled to a piston 14. Piston 14 slideably engagedwith the inner bore 36 of the mandrel 16. Mandrel 16 is slideablyengaged with the transfer sleeve 18. Transfer sleeve 18 is coupled viacrosslink bolt 19 engaged with slot 45 to the distal end of piston 14.Crosslink bolt 19 in slideably engaged with the slot 31 of the mandrel16. The cylinder head 13 is coupled to the lower portion of the lowercylinder 12. The upper portion of the lower cylinder 12 is coupled tothe lower portion of the top cylinder 11. Cylinder head 13 includes adisk shaped impact resistance material 17 located on the inner face 38of the cylinder head 13. The lower cylinder 12 combined with the piston14, the shoulder face 33 of piston coupling 39, and the impact dampeningmaterial 17 form a chamber 32.

Nylon plug 21 seals off chamber 40 from the outside of the setting tool10. O-rings 27 seal the upper cylinder 35 to the inner bore of topcylinder 11. Set screw 23 secures the top cylinder 11 to the lowercylinder 12. O-rings 29 seal the piston coupling 39 to the inner surfaceof lower cylinder 12. Set screw 41 secures the piston coupling 39 to thepiston 14. O-rings 28 seal the cylinder head 13 to the inner surface oflower cylinder 12. O-rings 26 seal the cylinder head 13 to the piston14. Set screw 24 secures the cylinder head 13 to the mandrel 16.

The impact resistant material 17 may be a viton based elastomer or apolyurethane energy absorbing material. An example impact resistantmaterial 17 may include “D3O”, which is a polyurethane energy-absorbingmaterial containing several additives and polyborodimethylsiloxane, adilatant non-Newtonian fluid. Polyborodimethylsiloxane is a substancecalled a dilatant that in its raw state flows freely but on shock lockstogether to absorb and disperse energy as heat before returning to itssemi fluid state. The commercial material known as “D3O” is in essence aclosed cell polyurethane foam composite with polyborodimethylsiloxane(PBDMS) as the dilatant dispersed through the foam matrix which makesthe product rate sensitive thus dissipating more energy than plainpolyurethane at specific energy levels. An example of the optimalproportions for a shock absorbing foam composite formula may include, byvolume, 15-35% of PBDMS and 40-70% fluid (the gas resulting from thefoaming process, generally carbon dioxide) with the remainder beingpolyurethane.

An example embodiment is shown in FIG. 2 from a top view cross-sectionof a setting tool prior to setting. The setting tool 10 may include atop cylinder 11 coupled to a lower cylinder 12. An upper cylinder 35 isslideably engaged with the top cylinder 11. The upper cylinder 35includes an inner bore referred to as the power charge chamber 15. Theupper cylinder 35 is coupled to a piston 14. Piston 14 slideably engagedwith the inner bore 36 of the mandrel 16. Mandrel 16 is slideablyengaged with the transfer sleeve 18. Transfer sleeve 18 is coupled viacrosslink bolt 19 engaged with slot 45 to the distal end of piston 14.Crosslink bolt 19 in slideably engaged with the slot 31 of the mandrel16. The cylinder head 13 is coupled to the lower portion of the lowercylinder 12. The upper portion of the lower cylinder 12 is coupled tothe lower portion of the top cylinder 11. Cylinder head 13 includes adisk shaped impact resistance material 17 located on the inner face 38of the cylinder head 13. The lower cylinder 12 combined with the piston14, the shoulder face 33 of piston coupling 39, and the impact dampeningmaterial 17 form a chamber 32.

Nylon plug 21 seals off chamber 40 from the outside of the setting tool10. O-rings 27 seal the upper cylinder 35 to the inner bore of topcylinder 11. Set screw 23 secures the top cylinder 11 to the lowercylinder 12. O-rings 29 seal the piston coupling 39 to the inner surfaceof lower cylinder 12. Set screw 41 secures the piston coupling 39 to thepiston 14. O-rings 28 seal the cylinder head 13 to the inner surface oflower cylinder 12. O-rings 26 seal the cylinder head 13 to the piston14. Set screw 24 secures the cylinder head 13 to the mandrel 16. Setscrew 25 secures the retention ring 20 to the transfer sleeve 18.

An example embodiment is shown in FIG. 3 using an assembly viewcross-section of a setting tool. The setting tool 10 may include a topcylinder 11 coupled to a lower cylinder 12. An upper cylinder 35 isslideably engaged with the top cylinder 11. The upper cylinder 35includes an inner bore referred to as the power charge chamber 15. Theupper cylinder 35 is coupled to a piston 14. Piston 14 slideably engagedwith the inner bore 36 of the mandrel 16. Mandrel 16 is slideablyengaged with the transfer sleeve 18. Transfer sleeve 18 is coupled viacrosslink bolt 19 engaged with slot 45 to the distal end of piston 14.Crosslink bolt 19 in slideably engaged with the slot 31 of the mandrel16. The cylinder head 13 is coupled to the lower portion of the lowercylinder 12. The upper portion of the lower cylinder 12 is coupled tothe lower portion of the top cylinder 11. Cylinder head 13 includes adisk shaped impact resistance material 17 located on the inner face 38of the cylinder head 13. The lower cylinder 12 combined with the piston14, the shoulder face 33 of piston coupling 39, and the impact dampeningmaterial 17 form a chamber 32. Transfer sleeve 18 is coupled viacrosslink bolt 19 engaged with slot 45 to the distal end of piston 14.

Nylon plug 21 seals off chamber 40 from the outside of the setting tool10. O-rings 27 seal the upper cylinder 35 to the inner bore of topcylinder 11. Set screw 23 secures the top cylinder 11 to the lowercylinder 12. O-rings 29 seal the piston coupling 39 to the inner surfaceof lower cylinder 12. Set screw 41 secures the piston coupling 39 to thepiston 14. O-rings 28 seal the cylinder head 13 to the inner surface oflower cylinder 12. O-rings 26 seal the cylinder head 13 to the piston14. Set screw 24 secures the cylinder head 13 to the mandrel 16. Setscrew 25 secures the retention ring 20 to the transfer sleeve 18.

An example embodiment is shown in FIG. 4 from a side view cross-sectionof a setting tool after the setting tool has been activated. The settingtool 10 may include a top cylinder 11 coupled to a lower cylinder 12. Anupper cylinder 35 is slideably engaged with the top cylinder 11. Theupper cylinder 35 includes an inner bore referred to as the power chargechamber 15. The upper cylinder 35 is coupled to a piston 14. Piston 14slideably engaged with the inner bore 36 of the mandrel 16. Mandrel 16is slideably engaged with the transfer sleeve 18. Transfer sleeve 18 iscoupled via crosslink bolt 19 engaged with slot 45 to the distal end ofpiston 14. Crosslink bolt 19 in slideably engaged with the slot 31 ofthe mandrel 16. The cylinder head 13 is coupled to the lower portion ofthe lower cylinder 12. The upper portion of the lower cylinder 12 iscoupled to the lower portion of the top cylinder 11. Cylinder head 13includes a disk shaped impact resistance material 17 located on theinner face 38 of the cylinder head 13. The lower cylinder 12 combinedwith the piston 14, the shoulder face 33 of piston coupling 39, and theimpact dampening material 17 form a chamber 32.

Nylon plug 21 seals off chamber 40 from the outside of the setting tool10. O-rings 27 seal the upper cylinder 35 to the inner bore of topcylinder 11. Set screw 23 secures the top cylinder 11 to the lowercylinder 12. O-rings 29 seal the piston coupling 39 to the inner surfaceof lower cylinder 12. Set screw 41 secures the piston coupling 39 to thepiston 14. O-rings 28 seal the cylinder head 13 to the inner surface oflower cylinder 12. O-rings 26 seal the cylinder head 13 to the piston14. Set screw 24 secures the cylinder head 13 to the mandrel 16. Setscrew 25 secures the retention ring 20 to the transfer sleeve 18.

Still referring to FIG. 4 the shoulder face 33 is in contact with theimpact resistance material 17 located on the inner face 38 of thecylinder head 13. The chamber 32 is substantially collapsed from itsoriginal size. The transfer sleeve 18 has been fully extended along thelength of the mandrel 16. This results in a push-pull effect where apacker or other expandable attached to the mandrel is pulled against theforce exerted from the sliding transfer sleeve 18. Such combination offorces allows for compressing rubber and or metal sealing surfacestogether, forcing radial expansion against a wellbore, thus sealing thewellbore. Once an expandable is set, the setting tool can be removedfrom the expandable by a pulling force from the surface which causes ashear pin or other intentionally breakable component to intentionallyfail, thus leaving the expandable in place as the setting tool is pulleduphole.

An example embodiment is shown in FIG. 5 with a top view cross-sectionof a setting tool after the setting tool has been activated. The settingtool 10 may include a top cylinder 11 coupled to a lower cylinder 12. Anupper cylinder 35 is slideably engaged with the top cylinder 11. Theupper cylinder 35 includes an inner bore referred to as the power chargechamber 15. The upper cylinder 35 is coupled to a piston 14. Piston 14slideably engaged with the inner bore 36 of the mandrel 16. Mandrel 16is slideably engaged with the transfer sleeve 18. Transfer sleeve 18 iscoupled via crosslink bolt 19 engaged with slot 45 to the distal end ofpiston 14. Crosslink bolt 19 in slideably engaged with the slot 31 ofthe mandrel 16. The cylinder head 13 is coupled to the lower portion ofthe lower cylinder 12. The upper portion of the lower cylinder 12 iscoupled to the lower portion of the top cylinder 11. Cylinder head 13includes a disk shaped impact resistance material 17 located on theinner face 38 of the cylinder head 13. The lower cylinder 12 combinedwith the piston 14, the shoulder face 33 of piston coupling 39, and theimpact dampening material 17 form a chamber 32.

Although the invention has been described in terms of embodiments whichare set forth in detail, it should be understood that this is byillustration only and that the invention is not necessarily limitedthereto. For example, terms such as upper and lower or top and bottomcan be substituted with uphole and downhole, respectfully. Top andbottom could be left and right, respectively. Uphole and downhole couldbe shown in figures as left and right, respectively, or top and bottom,respectively. Generally downhole tools initially enter the borehole in avertical orientation, but since some boreholes end up horizontal, theorientation of the tool may change. In that case downhole, lower, orbottom is generally a component in the tool string that enters theborehole before a component referred to as uphole, upper, or top,relatively speaking. The first housing and second housing may be tophousing and bottom housing, respectfully. In a gun string such asdescribed herein, the first gun may be the uphole gun or the downholegun, same for the second gun, and the uphole or downhole references canbe swapped as they are merely used to describe the location relationshipof the various components. Terms like wellbore, borehole, well, bore,oil well, and other alternatives may be used synonymously. Terms liketool string, tool, perforating gun string, gun string, or downholetools, and other alternatives may be used synonymously. The alternativeembodiments and operating techniques will become apparent to those ofordinary skill in the art in view of the present disclosure.Accordingly, modifications of the invention are contemplated which maybe made without departing from the spirit of the claimed invention.

What is claimed is:
 1. A setting tool apparatus comprising: a firstcylindrical body with an inner bore; a second cylindrical body with aninner bore, being coaxial with and coupled to the first cylindricalbody; a third cylindrical body slideably with a first end engaged to theinner bore of the first cylindrical body and having an inner cavity withan axial opening at the first end adapted to accept a power charge and ahaving a distal end with a shoulder slideably engaged with the secondcylindrical body inner bore; a fourth cylindrical body with a first endcoupled to the distal end of the third cylindrical body and having adistal end with a transverse slot; a fifth cylindrical body fixed to thedistal end of the second cylindrical body and having an inner borewherein the fourth cylindrical body is slideably engaged therewith andfurther having a radial face within the second cylindrical body; a discshaped impact dampening material with a hollow center having the fourthcylindrical body is located therethrough and coupled to the radial faceof the fifth cylindrical body; a sixth cylindrical body coupled to thefifth cylindrical body and having a transverse slot; and wherein theshoulder of the third cylindrical body engages the disc shaped impactdampening material when the third cylindrical body travels apredetermined distance within the second cylindrical body.
 2. Theapparatus of claim 1 wherein the inner cavity of the third cylindricalbody forms a power charge chamber.
 3. The apparatus of claim 1 whereinthe fourth cylindrical body is piston
 4. The apparatus of claim 1wherein a chamber is formed by the first piston and the cylindricalbody.
 5. A setting tool apparatus comprising: a cylindrical body havinga center axis, a first end, a second end, an inner surface, and an outersurface; a first piston located within the cylindrical body and axiallyaligned with the cylindrical body, having a first end and a second end,the first end coupled to a second cylindrical body with a raised radialshoulder; a cylindrical mandrel extending from the second end of thefirst piston and being axially aligned with the cylindrical body; acylinder head coupled to the second end of the cylindrical body andaxially aligned with the cylindrical body and having an inner radialface with the cylindrical mandrel located therethrough; an impactdampening material in contact with the inner radial face; and whereinthe impact dampening material absorbs the energy of the piston movingdownhole within the cylindrical body without a dampening fluid.
 6. Theapparatus of claim 5 further comprising a power charge located proximateto the first cylindrical body, wherein gases generated by the powercharge can enter second cylindrical body.
 7. The apparatus of claim 6further comprising a firing head coupled to the power charge.
 8. Amethod for setting a plug in a borehole comprising: activating a firinghead; starting a gas pressure generating chemical reaction; pressurizinga chamber located with a cylinder with the generated gas pressure;moving a piston disposed within the cylinder in a downhole axialdirection with the generated gas; setting an expandable packer using thedownhole motion of the piston; and impacting the first piston against animpact dampening material, wherein the impact stops the movement of thepiston without the use of a hydraulic fluid.
 9. A method as in claim 8further comprising placing a setting tool in a borehole at apredetermined location for installing a bridge plug.
 10. A method as inclaim 8 further comprising shearing a shear stud coupled between asetting tool and a setting plug.
 11. A method as in claim 8 furthercomprising removing the setting tool from the borehole after setting abridge plug.
 12. The method as in claim 8 wherein the expandable packeris a bridge plug.